230121012 has 24 divisors (see below), whose sum is σ = 585762912. Its totient is φ = 69733600.

The previous prime is 230121007. The next prime is 230121077. The reversal of 230121012 is 210121032.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 871539 + ... + 871802.

It is an arithmetic number, because the mean of its divisors is an integer number (24406788).

Almost surely, 2^230121012 is an apocalyptic number.

230121012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

230121012 is an abundant number, since it is smaller than the sum of its proper divisors (355641900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230121012 is a wasteful number, since it uses less digits than its factorization.

230121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743359 (or 1743357 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 230121012 is about 15169.7400109560. The cubic root of 230121012 is about 612.8000025280.

Adding to 230121012 its reverse (210121032), we get a palindrome (440242044).

The spelling of 230121012 in words is "two hundred thirty million, one hundred twenty-one thousand, twelve".